rs138654170

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001130987.2(DYSF):c.2335G>A(p.Gly779Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000237 in 1,614,056 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. G779G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00080 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

DYSF
NM_001130987.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:3

Conservation

PhyloP100: 3.94

Publications

3 publications found

Variant links:

Genes affected

DYSF (HGNC:3097): (dysferlin) The protein encoded by this gene belongs to the ferlin family and is a skeletal muscle protein found associated with the sarcolemma. It is involved in muscle contraction and contains C2 domains that play a role in calcium-mediated membrane fusion events, suggesting that it may be involved in membrane regeneration and repair. In addition, the protein encoded by this gene binds caveolin-3, a skeletal muscle membrane protein which is important in the formation of caveolae. Specific mutations in this gene have been shown to cause autosomal recessive limb girdle muscular dystrophy type 2B (LGMD2B) as well as Miyoshi myopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2008]

DYSF Gene-Disease associations (from GenCC):

autosomal recessive limb-girdle muscular dystrophy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
neuromuscular disease caused by qualitative or quantitative defects of dysferlin
Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health
autosomal recessive limb-girdle muscular dystrophy type 2B
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
distal myopathy with anterior tibial onset
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
congenital myopathy, Paradas type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Miyoshi myopathy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DYSF links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.005818844).

BP6

Variant 2-71561870-G-A is Benign according to our data. Variant chr2-71561870-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 195749.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000795 (121/152182) while in subpopulation AFR AF = 0.0026 (108/41520). AF 95% confidence interval is 0.0022. There are 0 homozygotes in GnomAd4. There are 62 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYSF	NM_001130987.2 link	c.2335G>A	p.Gly779Ser	missense_variant	Exon 23 of 56	ENST00000410020.8	NP_001124459.1	O75923-13
DYSF	NM_003494.4 link	c.2281G>A	p.Gly761Ser	missense_variant	Exon 23 of 55	ENST00000258104.8	NP_003485.1	O75923-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DYSF	ENST00000410020.8 link	c.2335G>A	p.Gly779Ser	missense_variant	Exon 23 of 56	1	NM_001130987.2	ENSP00000386881.3		O75923-13
DYSF	ENST00000258104.8 link	c.2281G>A	p.Gly761Ser	missense_variant	Exon 23 of 55	1	NM_003494.4	ENSP00000258104.3		O75923-1

Frequencies

GnomAD3 genomes

AF:

0.000776

AC:

118

AN:

152064

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00254

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000290

AC:

AN:

251306

AF XY:

0.000265

show subpopulations

Gnomad AFR exome

AF:

0.00222

Gnomad AMR exome

AF:

0.000550

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000179

AC:

261

AN:

1461874

Hom.:

Cov.:

AF XY:

0.000146

AC XY:

106

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00290

AC:

AN:

33480

American (AMR)

AF:

0.000470

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000374

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000962

AC:

107

AN:

1112000

Other (OTH)

AF:

0.000464

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

106

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000795

AC:

121

AN:

152182

Hom.:

Cov.:

AF XY:

0.000833

AC XY:

AN XY:

74400

show subpopulations

African (AFR)

AF:

0.00260

AC:

108

AN:

41520

American (AMR)

AF:

0.000262

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3462

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

67994

Other (OTH)

AF:

0.000473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000352

Hom.:

Bravo

AF:

0.000937

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000346

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Dec 30, 2015

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 30, 2019

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 05, 2019

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 30564623) -

Neuromuscular disease caused by qualitative or quantitative defects of dysferlin

Uncertain:1Benign:1

Mar 23, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Distal myopathy with anterior tibial onset;C1850889:Autosomal recessive limb-girdle muscular dystrophy type 2B;C4551973:Miyoshi muscular dystrophy 1

Uncertain:1

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Autosomal recessive limb-girdle muscular dystrophy type 2B

Benign:1

Jan 03, 2020

Natera, Inc.

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.37

CADD

Benign

(source)

DANN

Benign

0.53

DEOGEN2

Benign

0.14

.;.;.;.;T;.;.;.;.;.;.

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.82

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.83

T;T;T;T;T;T;T;T;T;T;T

M_CAP

Benign

0.053

MetaRNN

Benign

0.0058

T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.55

MutationAssessor

Benign

1.6

.;.;L;.;L;.;.;.;.;.;.

PhyloP100

3.9

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.18

N;N;N;N;N;N;N;N;N;N;N

REVEL

Benign

0.28

Sift

Benign

0.52

T;T;T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.59

T;T;T;T;T;T;T;T;T;T;T

Polyphen

0.56

P;B;B;D;P;D;D;B;D;D;B

Vest4

0.13

MVP

0.67

MPC

0.15

ClinPred

0.032

GERP RS

-3.7

Varity_R

0.019

gMVP

0.37

Mutation Taster

=87/13

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over